x86: refactor x86_quirks support

Impact: cleanup

Make x86_quirks support more transparent. The highlevel
methods are now named:

  extern void x86_quirk_pre_intr_init(void);
  extern void x86_quirk_intr_init(void);

  extern void x86_quirk_trap_init(void);

  extern void x86_quirk_pre_time_init(void);
  extern void x86_quirk_time_init(void);

This makes it clear that if some platform extension has to
do something here that it is considered ... weird, and is
discouraged.

Also remove arch_hooks.h and move it into setup.h (and other
header files where appropriate).

Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 files changed, 24 insertions, 30 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index c6bd7710585d..f9cecdfd05c5 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -34,7 +34,6 @@
 #include <linux/smp.h>
 #include <linux/mm.h>
 
-#include <asm/arch_hooks.h>
 #include <asm/pgalloc.h>
 #include <asm/atomic.h>
 #include <asm/mpspec.h>
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index c9ec90742e9f..3a730fa574bb 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -35,7 +35,6 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <asm/acpi.h>
-#include <asm/arch_hooks.h>
 #include <asm/e820.h>
 #include <asm/setup.h>
 
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 11d5093eb281..df89102bef80 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -22,7 +22,6 @@
 #include <asm/pgtable.h>
 #include <asm/desc.h>
 #include <asm/apic.h>
-#include <asm/arch_hooks.h>
 #include <asm/i8259.h>
 
 /*
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c
index bf629cadec1a..50b8c3a3006c 100644
--- a/arch/x86/kernel/irqinit_32.c
+++ b/arch/x86/kernel/irqinit_32.c
@@ -18,7 +18,7 @@
 #include <asm/pgtable.h>
 #include <asm/desc.h>
 #include <asm/apic.h>
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
 #include <asm/i8259.h>
 #include <asm/traps.h>
 
@@ -127,8 +127,8 @@ void __init native_init_IRQ(void)
 {
         int i;
 
-        /* all the set up before the call gates are initialised */
-        pre_intr_init_hook();
+        /* Execute any quirks before the call gates are initialised: */
+        x86_quirk_pre_intr_init();
 
         /*
          * Cover the whole vector space, no vector can escape
@@ -188,10 +188,11 @@ void __init native_init_IRQ(void)
         if (!acpi_ioapic)
                 setup_irq(2, &irq2);
 
-        /* setup after call gates are initialised (usually add in
-         * the architecture specific gates)
+        /*
+         * Call quirks after call gates are initialised (usually add in
+         * the architecture specific gates):
          */
-        intr_init_hook();
+        x86_quirk_intr_init();
 
         /*
          * External FPU? Set up irq13 if so, for
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 652fce6d2cce..137f2e8132df 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -19,7 +19,6 @@
 #include <linux/clocksource.h>
 #include <linux/kvm_para.h>
 #include <asm/pvclock.h>
-#include <asm/arch_hooks.h>
 #include <asm/msr.h>
 #include <asm/apic.h>
 #include <linux/percpu.h>
diff --git a/arch/x86/kernel/mca_32.c b/arch/x86/kernel/mca_32.c
index f74eef52ab55..845d80ce1ef1 100644
--- a/arch/x86/kernel/mca_32.c
+++ b/arch/x86/kernel/mca_32.c
@@ -51,7 +51,6 @@
 #include <linux/ioport.h>
 #include <asm/uaccess.h>
 #include <linux/init.h>
-#include <asm/arch_hooks.h>
 
 static unsigned char which_scsi;
 
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 6dc4dca255e4..63dd358d8ee1 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -28,7 +28,6 @@
 #include <asm/paravirt.h>
 #include <asm/desc.h>
 #include <asm/setup.h>
-#include <asm/arch_hooks.h>
 #include <asm/pgtable.h>
 #include <asm/time.h>
 #include <asm/pgalloc.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d4de1e4c2045..5b85759e7972 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -74,8 +74,9 @@
 #include <asm/e820.h>
 #include <asm/mpspec.h>
 #include <asm/setup.h>
-#include <asm/arch_hooks.h>
 #include <asm/efi.h>
+#include <asm/timer.h>
+#include <asm/i8259.h>
 #include <asm/sections.h>
 #include <asm/dmi.h>
 #include <asm/io_apic.h>
@@ -987,7 +988,7 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_X86_32
 
 /**
- * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ * x86_quirk_pre_intr_init - initialisation prior to setting up interrupt vectors
  *
  * Description:
  *      Perform any necessary interrupt initialisation prior to setting up
@@ -995,7 +996,7 @@ void __init setup_arch(char **cmdline_p)
  *      interrupts should be initialised here if the machine emulates a PC
  *      in any way.
  **/
-void __init pre_intr_init_hook(void)
+void __init x86_quirk_pre_intr_init(void)
 {
         if (x86_quirks->arch_pre_intr_init) {
                 if (x86_quirks->arch_pre_intr_init())
@@ -1005,7 +1006,7 @@ void __init pre_intr_init_hook(void)
 }
 
 /**
- * intr_init_hook - post gate setup interrupt initialisation
+ * x86_quirk_intr_init - post gate setup interrupt initialisation
  *
  * Description:
  *      Fill in any interrupts that may have been left out by the general
@@ -1013,7 +1014,7 @@ void __init pre_intr_init_hook(void)
  *      than the devices on the I/O bus (like APIC interrupts in intel MP
  *      systems) are started here.
  **/
-void __init intr_init_hook(void)
+void __init x86_quirk_intr_init(void)
 {
         if (x86_quirks->arch_intr_init) {
                 if (x86_quirks->arch_intr_init())
@@ -1022,13 +1023,13 @@ void __init intr_init_hook(void)
 }
 
 /**
- * trap_init_hook - initialise system specific traps
+ * x86_quirk_trap_init - initialise system specific traps
  *
  * Description:
  *      Called as the final act of trap_init().  Used in VISWS to initialise
  *      the various board specific APIC traps.
  **/
-void __init trap_init_hook(void)
+void __init x86_quirk_trap_init(void)
 {
         if (x86_quirks->arch_trap_init) {
                 if (x86_quirks->arch_trap_init())
@@ -1044,23 +1045,23 @@ static struct irqaction irq0  = {
 };
 
 /**
- * pre_time_init_hook - do any specific initialisations before.
+ * x86_quirk_pre_time_init - do any specific initialisations before.
  *
  **/
-void __init pre_time_init_hook(void)
+void __init x86_quirk_pre_time_init(void)
 {
         if (x86_quirks->arch_pre_time_init)
                 x86_quirks->arch_pre_time_init();
 }
 
 /**
- * time_init_hook - do any specific initialisations for the system timer.
+ * x86_quirk_time_init - do any specific initialisations for the system timer.
  *
  * Description:
  *      Must plug the system timer interrupt source at HZ into the IRQ listed
  *      in irq_vectors.h:TIMER_IRQ
  **/
-void __init time_init_hook(void)
+void __init x86_quirk_time_init(void)
 {
         if (x86_quirks->arch_time_init) {
                 /*
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 764c74e871f2..5c5d87f0b2e1 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -33,7 +33,7 @@
 #include <linux/time.h>
 #include <linux/mca.h>
 
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
 #include <asm/hpet.h>
 #include <asm/time.h>
 #include <asm/timer.h>
@@ -118,7 +118,7 @@ void __init hpet_time_init(void)
 {
         if (!hpet_enable())
                 setup_pit_timer();
-        time_init_hook();
+        x86_quirk_time_init();
 }
 
 /*
@@ -131,7 +131,7 @@ void __init hpet_time_init(void)
  */
 void __init time_init(void)
 {
-        pre_time_init_hook();
+        x86_quirk_pre_time_init();
         tsc_init();
         late_time_init = choose_time_init();
 }
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index acb8c0585ab9..c8c0a7e530be 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -61,7 +61,7 @@
 #include <asm/proto.h>
 #else
 #include <asm/processor-flags.h>
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
 #include <asm/traps.h>
 
 #include "cpu/mcheck/mce.h"
@@ -1026,6 +1026,6 @@ void __init trap_init(void)
         cpu_init();
 
 #ifdef CONFIG_X86_32
-        trap_init_hook();
+        x86_quirk_trap_init();
 #endif
 }
diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c
index 34199d30ff46..191a876e9e87 100644
--- a/arch/x86/kernel/visws_quirks.c
+++ b/arch/x86/kernel/visws_quirks.c
@@ -24,7 +24,6 @@
 
 #include <asm/visws/cobalt.h>
 #include <asm/visws/piix4.h>
-#include <asm/arch_hooks.h>
 #include <asm/io_apic.h>
 #include <asm/fixmap.h>
 #include <asm/reboot.h>
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index 8c48b4650599..49b4cd6707f9 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -28,7 +28,6 @@
 
 #include <asm/vmi.h>
 #include <asm/vmi_time.h>
-#include <asm/arch_hooks.h>
 #include <asm/apicdef.h>
 #include <asm/apic.h>
 #include <asm/timer.h>